Dropbox is failing to reply to the app - TMS FNC Cloud Pack - TMS Support Center

A user of my app is reporting a new problem with Dropbox. The permission screen appears and then he gets an error: Most of the users who have tried out my app with the TMS FNC Cloud Pack library are reporting no issues with Dropbox.

TMS FNC Cloud Pack Delphi REST components to access Google

TMS FNC Cloud Pack Delphi REST components to access Google

Setting up a Service Account to allow scanning of Dropbox files

TMS FNC WX Pack (Trial) - components not working in Android

TMS FNC Cloud Pack Delphi REST components to access Google

TMS Software, Blog

TMS Software, Blog

TMS Software

TMS FNC UI Pack Delphi UI components: Grid, Planner, Treeview

TMS Software

TMS FNC Cloud Pack Delphi REST components to access Google

Testing sync at Dropbox - Dropbox